Moncada, who is considered the organization’s top prospect after signing a contract in spring training that included a $31.5 million signing bonus, exited Single-A Greenville’s game Saturday with a hamstring injury. The 19-year-old slid hard into third base on a triple and came up hurt.

Moncada’s triple marked his first professional extra-base hit. The Cuban infielder has played five games with the Greenville Drive since joining the team following a stint at Red Sox extended spring training in Fort Myers, Fla.

The Red Sox spent $63 million to acquire Moncada’s services, as they were required to pay a 100 percent tax to Major League Baseball in addition to the signing bonus they awarded the Cuban phenom.